still doesn't fix the people that were legit and got like 500+ free rating.

Well as far as I know Blizzard still has the System, like they used to have in wotlk?, everyone could see every game a team did with dmg/heal etc...but now its only for Blizzard staff because too many people reported for nothing. So they could just check with the obvious high teams like the one on bloodlust, how much rating they got from the wintraders and just remove the rating.

but this would actually take a little bit of time/work for the PVP section and we are talking about blizzard, so I guess we will get a "5.1 WILL FIX IT"

I've had the ole perma-ban hammer slam down on my own accounts a couple of times as well. I've always been able to get them to reverse the perma-ban, though the offenses were for different things. Mostly just extremely vulgar things said in trade chat, and interactions with China farmers.

If they do un-ban your account, please try and be less of a scumbag next time if you really were win trading with the wrong intentions. I can understand if you just wanted to do it to bring their attention to the matter, but you had to know the risks of that going into this.